After getting a chance to use the emulator, its a great piece of work! But, there are somethings that I think could help to make the emulator near perfect.
1. Make all of your own graphics For example, some screens are screenshots from the actual XL itself, while this has integrity from the actual one, it also makes the quality a bit lower since the screenshot isn't from the machine itself. The Aviation screens, traffic screens look perfect because you made them yourself.
2. About the fonts.. what is rendering the fonts? Sometimes they look blurry and jagged and I just wondered why that happens.
Other than that the thing is great!